US Patent No: 4,770,979

Number of patents in Portfolio can not be more than 2000

Developer composition

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Abstract

The present invention provides a photographic developer composition comprising a plurality of developer components, including an alkali agent, that are packed in two or more separate receptacles. At least one of the developer components, except the alkali agent, is encapsulated in an alkali soluble polymer, and is held in at least one receptacle that does not substantially contain the alkali agent.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
KONICA CORPORATIONTOKYO4284

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Iijima, Toshifumi Hino, JP 30 275
Koboshi, Shigeharu Hino, JP 106 989
Yamazaki, Hiroshi Tokyo, JP 439 2157

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Patent Citation Ranking

Forward Cites

Patent Info (Count) # Cites Year
 
DELTAGRAPH A/S (2)
5,072,830 Process for obtaining a package containing mutually reactive particulate materials 6 1990
5,314,069 Process for obtaining a package containing mutually reactive particulate materials and a package containing such materials 1 1992
 
EASTMAN KODAK COMPANY (2)
5,499,488 Material supply 2 1994
5,627,005 Kit for supplying photoprocessing chemicals 1 1995
 
FUJI PHOTO FILM CO., LTD. (2)
5,217,854 Vacuum packaged color developing composition 6 1991
5,204,230 Vacuum packaged photographic processing composition 11 1991